|
No. |
LUSTER |
COLOR |
CLEAVAGE OR FRACTURE |
OTHER PROPERTIES |
NAME |
|
K-Spar |
|
|
GOOD-PERFECT.
UNEVEN FRACTURE |
|
|
|
Biotite |
|
|
PERFECT CLEAVAGE |
|
|
|
Gypsum |
|
|
1 PERFECT 2 IMPERFECT |
|
|
|
Amphibole |
|
|
2 DIRECTIONS OF PERFECT CLEAVAGE NOT AT RIGHT ANGLES
IRREG. FRACTURE |
|
|
|
Calcite |
|
|
PERFECT CLEAVAGE NOT AT RIGHT ANGLES |
|
|
|
Chert |
|
|
NONE: CONCOIDAL FRACTURE |
|
|
|
No. |
LUSTER |
COLOR |
CLEAVAGE OR FRACTURE |
OTHER PROPERTIES |
NAME |
|
Muscovite |
|
|
PERFECT CLEAVAGE |
|
|
|
Pyrite |
|
|
NOT USUALLY SEEN CLEAV. CONCOIDAL TO UNEVEN
FRACTURE |
|
|
|
Halite |
|
|
PERFECT CUBIC CLEAV. CONCOIDAL FRACTURE |
|
|
|
Quartz |
|
|
NO CLEAV. CONCOIDAL FRACTURE |
|
|
|
Olivine |
|
|
POOR NOT USUALLY SEEN- CONCOIDAL FRACTURE |
|
|
|
Hematite |
|
|
NO CLEAVAGE |
|
|